Add pre-commit tool to repository, and run on all files

.pre-commit-config.yaml

@@ -0,0 +1,17 @@
+-   repo: git://github.com/pre-commit/pre-commit-hooks
+    sha: v0.8.0
+    hooks:
+    -   id: autopep8-wrapper
+        args:
+        - -i
+        - --ignore=E128,E309,E501
+        exclude: ^docs/.*$
+    -   id: check-json
+    -   id: check-yaml
+    -   id: debug-statements
+    -   id: end-of-file-fixer
+        exclude: ^docs/.*$
+    -   id: trailing-whitespace
+    -   id: pretty-format-json
+        args:
+        - --autofix

graphene/pyutils/enum.py

@@ -662,6 +662,8 @@ def __new__(cls, value):
             if member.value == value:
                 return member
     raise ValueError("%s is not a valid %s" % (value, cls.__name__))
+
+
 temp_enum_dict['__new__'] = __new__
 del __new__
 
@@ -669,12 +671,16 @@ del __new__
 def __repr__(self):
     return "<%s.%s: %r>" % (
         self.__class__.__name__, self._name_, self._value_)
+
+
 temp_enum_dict['__repr__'] = __repr__
 del __repr__
 
 
 def __str__(self):
     return "%s.%s" % (self.__class__.__name__, self._name_)
+
+
 temp_enum_dict['__str__'] = __str__
 del __str__
 
@@ -705,6 +711,8 @@ def __format__(self, format_spec):
         cls = self._member_type_
         val = self.value
     return cls.__format__(val, format_spec)
+
+
 temp_enum_dict['__format__'] = __format__
 del __format__
 
@@ -751,6 +759,8 @@ def __eq__(self, other):
     if isinstance(other, self.__class__):
         return self is other
     return NotImplemented
+
+
 temp_enum_dict['__eq__'] = __eq__
 del __eq__
 
@@ -759,18 +769,24 @@ def __ne__(self, other):
     if isinstance(other, self.__class__):
         return self is not other
     return NotImplemented
+
+
 temp_enum_dict['__ne__'] = __ne__
 del __ne__
 
 
 def __hash__(self):
     return hash(self._name_)
+
+
 temp_enum_dict['__hash__'] = __hash__
 del __hash__
 
 
 def __reduce_ex__(self, proto):
     return self.__class__, (self._value_, )
+
+
 temp_enum_dict['__reduce_ex__'] = __reduce_ex__
 del __reduce_ex__
 
@@ -785,6 +801,8 @@ del __reduce_ex__
 @_RouteClassAttributeToGetattr
 def name(self):
     return self._name_
+
+
 temp_enum_dict['name'] = name
 del name
 
@@ -792,6 +810,8 @@ del name
 @_RouteClassAttributeToGetattr
 def value(self):
     return self._value_
+
+
 temp_enum_dict['value'] = value
 del value
 
@@ -817,6 +837,8 @@ def _convert(cls, name, module, filter, source=None):
     module_globals.update(cls.__members__)
     module_globals[name] = cls
     return cls
+
+
 temp_enum_dict['_convert'] = _convert
 del _convert
 

graphene/pyutils/signature.py

@@ -730,7 +730,7 @@ class Signature(object):
                 # Signature object (but let's have this check here
                 # to ensure correct behaviour just in case)
                 raise TypeError('{arg!r} parameter is positional only, '
-                                'but was passed as a keyword'. \
+                                'but was passed as a keyword'.
                                 format(arg=param.name))
 
             if param.kind == _VAR_KEYWORD:
@@ -748,7 +748,7 @@ class Signature(object):
                 # arguments.
                 if (not partial and param.kind != _VAR_POSITIONAL and
                         param.default is _empty):
-                    raise TypeError('{arg!r} parameter lacking default value'. \
+                    raise TypeError('{arg!r} parameter lacking default value'.
                                     format(arg=param_name))
 
             else:

graphene/relay/tests/test_node_custom.py

@@ -54,6 +54,7 @@ photo_data = {
 class RootQuery(ObjectType):
     node = CustomNode.Field()
 
+
 schema = Schema(query=RootQuery, types=[User, Photo])
 
 

graphene/types/tests/test_datetime.py

@@ -55,6 +55,7 @@ def test_time_query():
     assert not result.errors
     assert result.data == {'time': isoformat}
 
+
 def test_bad_datetime_query():
     not_a_date = "Some string that's not a date"
 
@@ -64,6 +65,7 @@ def test_bad_datetime_query():
     assert isinstance(result.errors[0], GraphQLError)
     assert result.data == None
 
+
 def test_bad_date_query():
     not_a_date = "Some string that's not a date"
 
@@ -73,6 +75,7 @@ def test_bad_date_query():
     assert isinstance(result.errors[0], GraphQLError)
     assert result.data == None
 
+
 def test_bad_time_query():
     not_a_date = "Some string that's not a date"
 
@@ -82,6 +85,7 @@ def test_bad_time_query():
     assert isinstance(result.errors[0], GraphQLError)
     assert result.data == None
 
+
 def test_datetime_query_variable():
     now = datetime.datetime.now().replace(tzinfo=pytz.utc)
     isoformat = now.isoformat()

graphene/types/tests/test_json.py

@@ -10,6 +10,7 @@ class Query(ObjectType):
     def resolve_json(self, info, input):
         return input
 
+
 schema = Schema(query=Query)
 
 

graphene/types/tests/test_uuid.py

@@ -9,6 +9,7 @@ class Query(ObjectType):
     def resolve_uuid(self, info, input):
         return input
 
+
 schema = Schema(query=Query)
 
 

graphene/utils/tests/test_annotate.py

@@ -1,9 +1,11 @@
 import pytest
 from ..annotate import annotate
 
+
 def func(a, b, *c, **d):
     pass
 
+
 annotations = {
     'a': int,
     'b': str,
@@ -11,8 +13,11 @@ annotations = {
     'd': dict
 }
 
+
 def func_with_annotations(a, b, *c, **d):
     pass
+
+
 func_with_annotations.__annotations__ = annotations
 
 

graphene/utils/tests/test_resolve_only_args.py

@@ -4,6 +4,7 @@ from .. import deprecated
 
 def test_resolve_only_args(mocker):
     mocker.patch.object(deprecated, 'warn_deprecation')
+
     def resolver(root, **args):
         return root, args
 

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = flake8,py27,py33,py34,py35,py36,pypy
+envlist = flake8,py27,py33,py34,py35,py36,pre-commit,pypy
 skipsdist = true
 
 [testenv]
@@ -20,6 +20,15 @@ setenv =
 commands=
     py.test
 
+[testenv:pre-commit]
+basepython=python3.6
+deps =
+    pre-commit>0.12.0
+setenv =
+    LC_CTYPE=en_US.UTF-8
+commands =
+    pre-commit {posargs:run --all-files}
+
 [testenv:flake8]
 deps = flake8
 commands =